So i have the peugeot 103 that I am working on, and the piston will not slide back into the cylinder. Here is the weird part, this engine ran two days ago.
I just pulled the top end last night to clean up the carbon build up on the piston crown as well as the head. I didnt touch the sides of the piston with anything other than my fingers, i didnt touch the inside of the cylinder at all.
The piston won't even slide into the cylinder w/o rings. It feels like the piston swelled about .002 of an inch.totally bizarre.
Anyway, is this kind of thing normal for peugeots? Do they have VERY small clearance tolerances? I could force the thing in there if i wanted to, but then it would just be seized, and that would in turn fuck my top end.